whats wrong with it?? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

turbodsm17 · 14th August 2006, 11:53 AM

i was driving my car the other day, doing some mountain course, and all of the sudden i heard a very small pop,,, it sounded like a small back-fire,,, anyway, immediately after my car started bogging down, and it was very difficult to drive, it would barely make it over 2000rpm,,, i was able to drive it home and the next day i changed out the ecu, and that did nothing,, so i checked the spark plugs and they were black, so i cleaned them with some high pressure air, and then started my car and it idled fine for about 2 minutes and it started bogging down again,, does any one know what might be the problem? the spark plugs maybe? once they were cleaned off the car idled fine for a bit, so I'm confused,, maybe the injectors?? the car spits out black exhaust indicating a very very rich a/f.. please let me know what you guys think
thanks

Pulse D · 14th August 2006, 12:00 PM

Hi,

What car is it?

Could it be AFM's.....?

lightspeed · 14th August 2006, 12:00 PM

You've popped an intercooler hose off by the sounds of it.

nigel f · 14th August 2006, 12:03 PM

Quote:

Originally Posted by lightspeed

You've popped an intercooler hose off by the sounds of it.

Yeah sounds like it

Nigel

turbodsm17 · 14th August 2006, 09:09 PM

Quote:

Originally Posted by Pulse D

Hi,

What car is it?

Could it be AFM's.....?

sorry,, its a r32 gtr

iv checked all the intercooler pipes and every thing is still intact,, that was my first guess aswell, but there all intact and the clamps are still on there tight,, ill try disconnecting the afm's and see if it gets worse or not,, ill keep you guys posted

ANDY H · 14th August 2006, 09:12 PM

And you have checked the wons behind the bumper?

PMJ · 14th August 2006, 09:18 PM

Also make sure that they dont compress under throttle

turbodsm17 · 15th August 2006, 10:29 AM

iv checked the pipes from the turbo to the intercooler to the intake mani, and everything in between,,,

also they don't compress under throttle because i cant even get the engine to rev past 2000rpm, and i can boost at all...

so today i started the car up and played around with the throttle until i could get it to idle for a bit,, then i disconnected the afm and it died,,, so in conclusion,, the afm's are not the problem...
i also checked the fuel injectors and they are all good,, no black tips, so there all firing..

so I'm still confused about the problem,,, any one else have any ideas?

AJFleming · 15th August 2006, 10:31 AM

Possibly an AFM fault if you cant rev past 2000 rpm

14th August 2006, 11:53 AM	#1 (permalink)
turbodsm17 GTR Register Member Join Date: May 2006 Location: okinawa japan Posts: 17	whats wrong with it?? i was driving my car the other day, doing some mountain course, and all of the sudden i heard a very small pop,,, it sounded like a small back-fire,,, anyway, immediately after my car started bogging down, and it was very difficult to drive, it would barely make it over 2000rpm,,, i was able to drive it home and the next day i changed out the ecu, and that did nothing,, so i checked the spark plugs and they were black, so i cleaned them with some high pressure air, and then started my car and it idled fine for about 2 minutes and it started bogging down again,, does any one know what might be the problem? the spark plugs maybe? once they were cleaned off the car idled fine for a bit, so I'm confused,, maybe the injectors?? the car spits out black exhaust indicating a very very rich a/f.. please let me know what you guys think thanks

14th August 2006, 09:18 PM	#7 (permalink)
PMJ GTROC Member Join Date: Sep 2001 Location: In Cuckoo Land Posts: 1,626	Also make sure that they dont compress under throttle __________________ Paul J, "The Berkshire Flyers The Ratpac

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14th August 2006, 12:00 PM	#2 (permalink)
Pulse D GTR Register Member Join Date: Mar 2005 Location: Leicestershire Posts: 1,365	Hi, What car is it? Could it be AFM's.....?

14th August 2006, 12:00 PM	#3 (permalink)
lightspeed GTROC Member Join Date: Jul 2002 Location: South-west Posts: 1,812	You've popped an intercooler hose off by the sounds of it.

14th August 2006, 09:12 PM	#6 (permalink)
ANDY H GTR Register Member Join Date: Mar 2005 Location: maidstone Posts: 1,240	And you have checked the wons behind the bumper?

15th August 2006, 10:29 AM	#8 (permalink)
turbodsm17 GTR Register Member Join Date: May 2006 Location: okinawa japan Posts: 17	iv checked the pipes from the turbo to the intercooler to the intake mani, and everything in between,,, also they don't compress under throttle because i cant even get the engine to rev past 2000rpm, and i can boost at all... so today i started the car up and played around with the throttle until i could get it to idle for a bit,, then i disconnected the afm and it died,,, so in conclusion,, the afm's are not the problem... i also checked the fuel injectors and they are all good,, no black tips, so there all firing.. so I'm still confused about the problem,,, any one else have any ideas?

15th August 2006, 10:31 AM	#9 (permalink)
AJFleming GTR Register Member Join Date: Feb 2003 Location: Poole, Dorset, UK Posts: 3,789	Possibly an AFM fault if you cant rev past 2000 rpm